Sichuan Xinju Mineral Resource Development Co.,Ltd. 
produce & supply you the best materials as bellow says:
1,High purity Tellurium; Cadmium; Indium; Selenium; 
Sulfur; Antimony; Leads; Zinc; Bismuth; Tin etc.
Purity will be up to 5N-7N or 99.999%-99.99999%.
2,High purity Cadmium telluride; Cadmium Sulfide; 
Tellurium Dioxide; Zinc Oxide etc. Purity will be up to 5N-
6N or 99.999%-99.9999%.

We wish we can supply you the best materials!